Improving the heat rate of a pulverized coal power plant

Selection of the advanced Westinghouse design was based upon an evaluation of results from two preliminary phases. First, a qualitative assessment of the important system parameters which control plant heat rate was made. Recommendations were made of the appropriate goals for these parameters and identification of both design approaches and critical problems associated with the achievement of these goals. This portion of the study also showed that it was logical to categorize potential cycle improvements into development levels which range from what is available today (3500 psig, 1000F/1025F/1050F) to the use of the highest steam conditions to increase cycle efficiency. A steam temperature of 1400 F was selected as the upper bound for investigation. The pressure was set at 10,000 psig. Results are briefly reviewed.